Tire-carrying rim.



E. HOPKINSON.

TIRE CARRYING RIM.

APPLICATION FILED DEC. 10. 1910.

1917691L5 Patented Mar. 21,1916.

f, A 'fj glgi j specification 01 Letters Patent.

Patented lilies. 2i, 1%.6.

iipplisiiiion filed Ilocemoer 1Q, 1910. serial Ho. 596,602.

To 1232 whom it may cancer e:

Be it known that l, Homainson, a citizen of the United States of America, residing at East Grange, Nev Jersey, now temporarily residing in London, England, have invented certain new end-useful l'm movement in Tiie loizving liiins, of which the following is specification.

The object of the present invention is to provide a tire-carrying rim, cheap oi maxim factors and. efficient in operation, and cepahle of use in connection with both clenciierc and straight-sided tires. By tire-carrying rim, 1 mean a construction which is odapted to carry a time in on inflated condition, to pieced upon the .elly bend of a. Wheel, and there secured by any suitable means in such 21 manner as to be easily 2* movable.

In the drawings 1 have illustrated a constructicn embodying the principles of my invention; altlion' it -"ll be imdevstood that do not limit o-the precise construction described and shown.

in drawings, l ignre 1 is an elevation view e Tim according; to in cross section co an ene rim adapted tier lsiged scale, sho' use in connection wih a clencher ties. F 3 is view siz is; to Fig. 2, showing he run so for use in connection with a straight-sided tire. Fig. i is it view in croos section and perspective showing the under portion of the rim.

Referring to the drawings, like letters of 55 reference, refer to like parts throughout t seveinl views.

Riiferring to said drawings in detail 1 designates the side flanges for the tire, -which are of the usual reversible endless-ring conso struction.

2 the base portion, which is preferably made in three are sections, although if dos-iced it may consist of o ring broken at only one point.

The side flanges 1 are each provided with a circumferential groove 3 adjacent their bases. The arc sections of the case are provided it each side with a circumferential flange 4 and shoulder 5 fitting; into the grooves 3 the side flanges 1.

in Fig. 2 l have shoivn the pm'ts as arranged for use in connection with a clencher sire, and have illustrated in skeleton outline the edges of the slice of such a, tire, and a portion of the inner tube. Wile the corostruction is used in connection with a straight-sided tire, the shoulders 5, fit over the base of the flanges 1 when they are reversed, as illustrated in Fig. 3.

Referring to Fig. 4, l have shown a bridge piece 5 for the. purpose of maintaining the arc sections in circular relationship even if the tire is deflated and the shoulders on the flanges should become disengaged from the grooves 3. This bridge piece is provided with the Wedges 7 engaging correspondingly shaped grooves in the abutting edges of the are section of the base, In Fig. 1 I have illustrated another device for loridgdng the breaks in the arc sections. This consists of a. broken ring 9, the ends of which engage the valve stem or any other suitable projection to maintain the ring in circular formation.

The operation of the device is as follows :The tire being deflated and containing its inns: tube, the side flanges l are pieced in position. The are section of the ass which is provided at its central portion with the hole for the valve stem, is placed in. position by threading the valve ii through the hole provided for its reception, pves'sing the base portion against the outer faces of the side flanges 1, until the shoulders 5 snap into position in. the grooves 13, or above the base portion of the side flanges 1 when used in connection with s straight-sided tire. The remaining seciion 01' sections are similarly placed in position to complete the circle. If any device is used for bridging the arc sections these are placed in position and the tire is inflated to full riding pressure, the inflation acting to increase or press into closer engagement the side flanges of the tire with the side flanges on the lease. If no bridge pieces are 9 used the break between the are sections will he as slight espossibie, preferably not over 1. SUE:

fi nd of an inch. If, however, it is desired to use some mechanical device to maintain the eic sections in circular relationship to each other independent of the spreading tendency of the tire, one or more f the creeks may be provided with a Wedge piece 7, illustrated in Fig. 4-, or the broken ring co 'struction shown at 9 in Fig. 1 may be 9 adopted.

It will be seen that this construction of feeds a very simple construction. and one very cheap of manufacture. No special tools are necessary to operate the rim, and

tire carrying rim to the telly band may be availed of, none being, here shown or described, as that constitutes no portion of the present invention.

It will be understood that the arc sections will be appropriately shaped to co-act wvith the particular means used for securing them to the telly band of a \vheeli W hat I claim and desire to secure by Letters Patent of the United States is l. A tire-carrying rim comprising a ti; aged base section in the form of a broken ring whose flanges have undercut recesses, and a tire flange consisting of an endless ring having annular projections at the base thereof and adapted to enter said recesses.v

2. A tire carrying rim comprising a base portion in the form of a broken ring having side flanges along each of the edges, said flanges being provided with undercut recesses, tu'o tirc flanges consisting of endless rings having annular projections at the ing undercut side flanges, tire fiangesc'o'nsisting of endless rings having annular projections atthe bases thereof whereby the tire flanges engage-the side flanges of the are sections. v

Q i at. A tire carrying rim comprising a flanged base portion in the form of a broken ring whose flanges have LIIidQIZ'l-S recesses, and a tire flange consisting of an endless ring lnwing symmetrical projections at each side of the base thereof and adapted to enter said recesses.

A tire carrying rim comprising a base portion in the form o'la broken-ring having side flanges along each side of its edges,

said lianges being provided with undercut,v

recesses, two tire flanges consisting of endless rings having symnmtri .al projections at each side of the bases thereof, each of which is adapted to enter said recesses.

6. tire carrying rim comprising a base portion consisting oi? three are scc'ions having undercut side flanges, tire flanges consisting of endless rings having symmetrical projections at each side of the bases thereof whereby the tire flanges engage the side flanges of the arc sections.

7. A the carrying rim comprising a base portion in the form of a broken ring having undercut side flanges along each of its edgcs,'a Wedge located at-the break in the ring and two tire flanges consisting of endless rings provided with annular projections adapted to enter the nndercutportions of the side tlan es uhereb the tire flan es and base portion are united.

In tcstin'iony whereof I allix my signature in presence of two witnesses, ERNEST HOPKINSON.

Witnesses S. \Ynxno Hoan, FRANK IIU'IEON. 

